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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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io_uring_cq_advance(3) liburing Manual io_uring_cq_advance(3)
io_uring_cq_advance - mark one or more io_uring completion events
as consumed
#include <liburing.h>
void io_uring_cq_advance(struct io_uring *ring,
unsigned nr);
The io_uring_cq_advance(3) function marks nr IO completions
belonging to the ring param as consumed.
After the caller has submitted a request with io_uring_submit(3),
the application can retrieve the completion with
io_uring_wait_cqe(3), io_uring_peek_cqe(3), or any of the other
CQE retrieval helpers, and mark it as consumed with
io_uring_cqe_seen(3).
The function io_uring_cqe_seen(3) calls the function
io_uring_cq_advance(3).
Completions must be marked as seen, so their slot can get reused.
Failure to do so will result in the same completion being returned
on the next invocation.
None
io_uring_submit(3), io_uring_wait_cqe(3), io_uring_peek_cqe(3),
io_uring_wait_cqes(3), io_uring_wait_cqe_timeout(3),
io_uring_cqe_seen(3)
This page is part of the liburing (A library for io_uring)
project. Information about the project can be found at
⟨https://github.com/axboe/liburing⟩. If you have a bug report for
this manual page, send it to io-uring@vger.kernel.org. This page
was obtained from the project's upstream Git repository
⟨https://github.com/axboe/liburing⟩ on 2025-08-11. (At that time,
the date of the most recent commit that was found in the
repository was 2025-08-02.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
liburing-2.1 January 25, 2022 io_uring_cq_advance(3)
Pages that refer to this page: io_uring_buf_ring_cq_advance(3), __io_uring_buf_ring_cq_advance(3), io_uring_cq_advance(3), io_uring_for_each_cqe(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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